But a recent tweet called this long-held belief into question and sparked a conversation online about how effective vitamin C supplements are for fighting colds. Years of research show that taking ...

Got a cold? Many of us do at this time of the year. Vitamin C (also called ascorbic acid) is often touted as a method preventing a cold.It has also been promoted in the prevention and treatment of ...

Now that flu season is here, a lot of people are stocking up on vitamin C in hopes of warding off a cold. At the first sign of a sniffle, they start downing mega-doses of the vitamin. Is this really ...